Analytical Industries GPR-1800 IS ATEX Trace PPM Oxygen Transmitter - Manual (Page 23)

Advanced Instruments, Inc
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For example, if the transmitter is reading 1% on the 0-10% range and an upset occurs, the display will shift
to the 0-25% range when the oxygen reading exceeds 9.9%. Conversely, once the upset condition is
corrected, the display will shift back to the 0-10% range when the oxygen reading drops to 8.5%.
Manual Sampling
Access the MAIN MENU by pressing the MENU key.
Advance the reverse shade cursor using the ARROW keys to highlight MANUAL SAMPLE.
Press the ENTER key to select the highlighted menu option.
The following display appears:
MAIN MENU
AUTO SAMPLE
MANUAL SAMPLE
CALIBRATION
CONFIG ALARMS
BYPASS ALARMS
>>>
MANUAL RANGE
25%
1%
1000 PPM
100 PPM
10 PPM
Advance the reverse shade cursor using the ARROW keys to highlight the desired MANUAL RANGE.
Press the ENTER key to select the highlighted menu option.
The following display appears with the range selected and oxygen concentration of the sample gas:
MANUAL RANGE
25%
1%
1000 PPM
100 PPM
10 PPM
>>>
0.3 %
MANUAL RANGE
0-1% RANGE
76 F 100 KPA
If the oxygen value goes above the full scale range selected, display will not shift to the next higher range.
Instead, when the oxygen reading exceeds 110% of the upper limit of the current range, an OVER RANGE
warning will be displayed.
11.2
PPM
OVERRANGE
MANUALRANGE
10 0-10 PPM RANGE
76 F 100 KPA
Once the OVER RANGE warning appears the user must advance the transmitter to the next higher range.